Koyoseiga has been a manufacturer of Ibushikawara after successive generation. The number of Ibushikawara manufacturers is very few because of the modernizing influence in Japan.
However, we are working actively and are achieving satisfactory level of performance in Ibushikawara such as one of World Heritage Site, Himeji Castle , cultural assets, shrines and temples, inheriting forerunners skills in Himeji.


Ibushikawara is a traditional roof material which has been utilized for roof since ancient times in Japan.

Ibushikawara has a subdued silver brilliance, which creates a unique image of Japanese culture.

Ibushikawara is being used for historic buildings such as a temple or a castle.



We are focusing on the product development in the new filed such as interior products with the applied skills of Ibushikawara.
The distinct texture of Ibushikawara is very attractive and beautiful, which can not be reproduced with other material.